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• How do I see what connections are being made?

  - by Coldblackice

  My DDWRT router is showing that my computer has a connection count around 600! The router is at 100% CPU use. How can I see what's making all the connections? So far, I've opened up Resource Monitor and checked the network tab. I can sort by which program is using the most network bandwidth (Pale Moon browser), but I can't see what's making all of the connections. Or rather, where all the connections are being toward (trying to find what tab must be making all of these connections). I've also tried netstat -A, but it apparently doesn't show the actual number of connections being made. At least, the list of established connections isn't very long, by any means (like enough to account for the 500+ connections apparently being made.

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• Throughput tool with decent graphing.

  - by Cory J

  I've been looking through some of the tools available for measuring network throughput, namely iperf, bwping, ttcp, etc. I am planning on doing throughput tests over a long period of time, so what I really need is good graphing output, preferably rrd graphs. The Jperf frontend for iperf will generate a graph, and bmon has a nice command-line graph, but these simply count seconds since the test was started. I am trying to measure trends in throughput over times of the day, so a graph with times and days is necessary. So a way to get iperf to log to RRDs would be best, if this isn't possible could someone point me toward another solution?

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• Install Ruby 1.8.7 on Fedora 11/12

  - by tadman

  Is there a simple way to install Ruby 1.8.7 on Fedora 11 or 12 without side-stepping the yum/RPM package management system too severely? Building from source is always an option, but it tends to deploy things in irregular places and proves to be more fuss to maintain in the long run. A self-built RPM is okay, but I'm presuming there's a .rpm out there somewhere already. Rails is not especially happy with 1.8.6 and the Fedora community, for various reasons, considers 1.8.7 to be toxic and best avoided.

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• How to submit Windows 8 bugs on Microsoft Connect?

  - by ahmd1

  I was testing Windows 8 release preview and came across several bugs. One of my friends suggested letting Microsoft know through Microsft Connect. So I went to this web site: connect.microsoft.com I don't think that I'm a stupid person. I'm pretty good at figuring software and websites out, but this one beats me.... So I click on the "Products currently accepting bugs" link and get a long list of products. First off, most of those names is something that I've never heard before. Then I try searching the page for Windows 8 and ... find nothing :) Can someone explain in one or two sentences how to submit bugs to Microsoft?

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• Trouble with setting up Mac SSH with TP-LINK router

  - by arxanas

  I have a Mac running OS X 10.7.2, and a TP-Link TL-WR740N (whose control panel looks like this). Remote Login is on in the Mac's System Preferences, and port 22 is set to forward on the router. I can access my Mac as a web server using the external IP on port 80, which I have set up through the same port-forwarding mechanism provided by the router, but when I try to ssh server@external-ip, it just times out after a long while. (The same thing happens when I try vnc.) I can, however, ssh and vnc successfully into that computer while I'm on the same network when using its internal IP. Since ssh appears to work and port forwarding appears to work, I can't figure out what's causing the problem. Does anyone have any idea what might cause this?

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• Terribly slow Apache2 on VM Virtualbox

  - by cadavre

  I just launched VM Virtualbox with guest Ubuntu Server on host Windows 8. Both 64bit. Everything works perfectly fine. Maybe it's because I'm not using any X... Htop shows ~25% of memory usage, everything is fine, but not Apache2. Normally it's fine, but when I send request from my browser on host (networking mode set to Bridge mode), Apache2 is turning into 1-minute-long loading process with 100% CPU time. Any ideas how to debug it? Any ideas about solving this throat problem?

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• Silverlight Cream for April 24, 2010 -- #846

  - by Dave Campbell

  In this Issue: Michael Washington, Timmy Kokke, Pete Brown, Paul Yanez, Emil Stoychev, Jeremy Likness, and Pavan Podila. Shoutouts: If you've got some time to spend, the User Experience Kit is packed with info: User Experience Kit, and just plain fun to navigate ... thanks Scott Barnes for reminding me about it! Jesse Liberty is looking for some help organizing and cataloging posts for a new project he's got going: Help Wanted Emil Stoychev posted Slides and demos from my talk on Silverlight 4 From SilverlightCream.com: Silverlight 4 Drag and Drop File Manager Michael Washington has a post up about a Silverlight Drag and Drop File Manager in MVVM, but a secondary important point about the post is that he and Alan Beasley followed strict Designer/Developer rules on this... you recognized Alan's ListBox didn't you? Changing CSS with jQuery syntax in Silverlight using jLight Timmy Kokke is using jLight as introduced in a prior post to interact with the DOM from Silverlight. Essential Silverlight and WPF Skills: The UI Thread, Dispatchers, Background Workers and Async Network Programming Pete Brown has a great backrounder up for WPF and Silverlight devs on threading and networking, good comments too so far. Fluid layout and Fullscreen in Silverlight Paul Yanez has a quick post and demo up on forcing full-screen with a fluid layout, all code included -- and it doesn't take much Data Binding in Silverlight Emil Stoychev has a great long tutorial up on DataBinding in Silverlight ... he hits all the major points with text, samples, and code... definitely one to read! Yet Another MVVM Locator Pattern Another not-necessarily Silverlight post from Jeremy Likness -- but definitely a good one on MVVM and locator patterns. The SpiderWebControl for Silverlight Pavan Podila has a 'SpiderWebControl' for Silverlight 4 up... this is a great network graph control with any sort of feature I can think of... check out the demo, then grab the code... or the other way around, your choice :) Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• Server 2008 Hard Faults

  - by claw

  Hey all, plase bear with me as I haven't looked at a server in a very long time. The problem I am having is with a Windows 2008 Standard FE Service Pack 2 Intel Xeon X3430 @ 2.40 2.39 GHZ 4 GB Memory 64 Bit There seems to be no problems other than the physical memory peaking at 91%, always with over 100 Hard Faults Per Second. To my understanding hard faults should be fairly rare on a machine with. Are there any logs I can show you? Or investigate myself. The general performance of the machine is ok, i can access SBS2008 and change settings fairly smoothly without hangs etc. However, we connect to the server and do quite a bit of SQL via an application. For a record to retrieve say 20 rows, it can take 20+ seconds. Thanks in advance, Jamie EDIT: What the server is used for: IIS ASP Web Service SQL 2008 List item Exchange unable to upload screenshots due to low reputation - why doesnt my SO work here :)

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• MX Record Propagation

  - by Ryan

  How long does it take a change in MX records to propagate? Is the MX record TTL the max time it will take or do we also need to wait for all DNS records to propagate? We are changing our mail server from Exchange 2003 to Exchange Online. Our current MX records (at Network Solutions) have a 1 & 2 hour TTL (primary and backup MX respectively). When we change the MX records to point to Exchange Online should all MX records worldwide be updated within 2-4 hours or should we assume the traditional 48 hours for DNS to propagate? I assume that once all MX records propagate that all new incoming email will be directed to the new server.

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• apache2 mod_proxy configuration for single threaded servers

  - by The Doctor What

  I have a multiple instances of thin running behind apache 2.2's mod_proxy. The problem I have is that a couple pages, by design, take a while to run. If I just configure apache the obvious way (just add the thin urls as BalanceMember lines and no other configurations) then what happens is if someone clicks on the long-running page, then if enough web requests happen while it is running, someone eventually gets the same thin server and has to wait. Does anyone have some best practices or suggested configuration for mod_proxy and thin? Ciao!

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• Dell Docking Station Doesn’t Detect USB Mouse and Keyboard

  - by Ben Griswold

  I’ve found myself in this situation with multiple Dell docking stations and multiple Dell laptops running various Windows operating systems.  I don’t know why the docking station stops recognizing my USB mouse and keyboard – it just does.  It’s black magic.  The last time around I just starting plugging the mouse and keyboard into the docked laptop directly and went about my business (as if I wasn’t completing missing out on a couple of the core benefits of using a docking station.)  I guess that’s what happens when you forget how you got yourself out of the mess the last time around.  I had been in this half-assed state for a couple of weeks now, but a coworker fortunately got themselves in and out of the same pickle this morning.  Procrastinate long enough and the solution will just come to you, right? Here’s how to get yourself out of this mess: Undock your computer Unplug your docking station Count to an arbitrary number greater than 12.  (Not sure this is really required, but…) Plug your docking station back in Redock your machine I put my machine to sleep before taking the aforementioned actions.  My coworker completely shutdown his laptop instead.  The steps worked on both of our Win 7 machines this morning and, who knows, it might just work for you too. 

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• Transitioning to Transaction Base

  - by Glen McCallum

  I was actually hired at Oracle Health Sciences to work on the HTB application. Long story short, when HL7 version 3 was relatively new ... Canada made an initial sprint at adoption. Since then progress has slowed. I was part of that initial adoption and learned a lot about the Reference Information Model. At that time we worked mostly with CDA R2 Level 3 (fully coded/ structured xml) documents.HTB is a HL7 v3 RIM-based repository. Love it or hate it, the product is unique in the market place. One of the advantages is the flexibility of the model. You can aggregate information from literally any source system without any HTB data model modification and then use that data in a semantically meaningful way. That's extremely powerful.There is a minor speed bump getting up to speed with HL7 v3, there's no doubt about that. I believe that is why Oracle recruited me from Canada originally - so I could have a running start at HTB. In the near future I'm looking forward to an application deep dive with John Hatem.

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• Load website and fill form from the command line

  - by Martin Scharrer

  Using the Linux command line (Bash shell) I like to load a specific website in my browser (normally Firefox, but other one would be ok as well as long it runs under Linux) and fill a pre-defined form with some data. Actually, this should run from a Makefile. Most of the form data is static and will be stored as variables in the Makefile, just some fields are to be filled manually before manually sending the form. I know how to load the website in question from the command line using: firefox <URL> But there seems no possibility to fill the form automatically with variables given on the command line. Is there a plugin, executable or JavaScript which allows me to do this? Any suggestions and hints are welcome. I don't mind coding some JavaScript.

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• C#.NET vs VB.NET, Which language is better?

  Features I cannot say any language good or bad as long as it's compiler can produce MSIL can run under .NET CLR. If someone says C# has more futures, you can understand that those new features are of C# compiler but not .NET, because if C# has a specific future then CLR cannot understand them. So the new features of C# will have to convert to the code understood by CLR eventually. that means the new features are developed for C# compiler basically to facilitates the developer to write their code in better way. so that means no difference in feature list between C# and VB.NET if you think in CLR perspective. Ease of writing Code I feel writing code in C# is easy, because my background is C and C++, Java, syntaxes very are similar. I assume most developers feel the same. Readability But some people say VB.NET code most readable for the members who are from non technical background, because keywords are generally in English rather special charectors. No of Projects in Market I assume 80 percent of market uses C# in their .NET development. for example in my company many projects are there .nET and all are using C#. Productivity & Experience though the feature list is same, generally developers wants to write code in their familiar languages. because it increase the productivity. Hope this helps to choose the language which suits for you. span.fullpost {display:none;}

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• MyTop doesn't display executed queries

  - by recluze

  Hi, I'm trying to use mytop for figuring out what queries are being executed and how long they take. I can connect properly to the db but MySQL on localhost (5.1.41-3ubuntu12.8) up 0+01:50:47 [09:30:43] Queries: 3.0 qps: 0 Slow: 0.0 Se/In/Up/De(%): 68767/00/00/00 Key Efficiency: 99.1% Bps in/out: 0.0/ 1.2 Id User Host/IP DB Time Cmd Query or State -- ---- ------- -- ---- --- -------------- 225 root localhost 0 Query show full processlist 186 joom localhost culinary 5684 Sleep The number of queries increases over time but the queries themselves do not appear in the list. Is there some type of configuration that I need to do to enable it?

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• AutoCAD 11 and network file shares

  - by gravyface

  Small network of perhaps half a dozen engineers, currently working on local copies of AutoCAD project files, which are then copied back up to file server (2008 Standard, 1-2 year old Dell server hardware, RAID 5 SAS disks (10k? not positive)) at end of day. To me, this sounds horribly inefficient and error-prone, however, I've been told that "AutoCAD and network files = bad idea" and this is gospel. The network is currently 10/100 (perhaps this is the reason for the "gospel") but all the workstations are within 2 years old and have GbE NICs so an upgrade of the core switch is long overdue. However, I know certain applications don't like network access, at all, and any sign of latency or disruption brings the whole thing crashing down. Anyone care to chime in?

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• How can you invert the colors of a PDF?

  - by legr3c

  I need to invert all the colors of a PDF document (background, text, graphics, and images). I want it persistent in the file so the inverted viewing options, that some viewers offer, won't help. Rasterizing the document and using image manipulation software is also not an option. I read somewhere that this can be done with the Enfocus PitStop plugin for Acrobat. However I didn't see a corresponding command anywhere. Am I missing something? Then I read that the ARTS PDF Crackerjack plugin for Acrobat offers negative printing so I tried that, too. The option is there but it simply doesn't work. I have been searching for very long for a way to do this. It seems like a common enough task but I just can't find out how to do it. Are there maybe any virtual printer drivers or something of the sort that support negative printing? Can anyone help?

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• How to fix AVI index error

  - by Tim

  I try to open an AVI file. The first software I tried is VLC media player. It reports some error about AVI index: This AVI file is broken. Seeking will not work correctly. Do you want to try to fix it? This might take a long time. I chose yes, and it began fixing AVI index and existed when the repair progress bar reaches 20% or so. Then the video started playing and stopped much earlier than when it is supposed to finish. Next I tried to open it in Totem Movie Player, which also stopped earlier at the same place as in VLC player. I tried to play it in GMplayer. Now the entire AVI file can be played from start to finish, but it is impossible to drag playing progress bar while it was possible in VLC player and Totem player. I heard that Avidemux can fix AVI index error, but later discovered it failed to open the AVI file. So I was wondering how I can fix the AVI index error, or at least drag the playing progress bar in GMplayer? Thanks and regards!

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• Gigabyte GA-P55A-UD4P won't boot from USB drive with RAID enabled

  - by Daniel Schaffer

  I've got a Windows 7 installation image on my USB hard drive, which is set up to be bootable. I know it works because I've used it on several computers, and it works on the computer I'm trying to install as long as the RAID controller is disabled. However, when I enable the RAID controller and attempt to boot from the USB driver, it hangs for 30-60 seconds and then gives me the "disk boot failure, insert system disk" error like it can't find any OS. Just for laughs, I disabled the RAID controller again and it booted fine. I'm having separate, unrelated issues burning a dvd with the ISO, so I would prefer to get this working.

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• PHP cgi locks up and times out.

  - by Oli

  I've got a dozen wordpress sites hosted on a nginx/php-cgi setup. After a variable amount of time (usually not that long, and occasionally very fast) PHP locks up and after 2 minutes (the timeout I set in nginx), it get a 504 timeout. I've tried everything I can think of. I've been using an init script to launch php-cgi but I compiled out php-fpm and tried that for a day with various configurations with the same results. I've tried a low number of PHP_FCGI_CHILDREN. I've tried as high as my RAM will let me. I've tried various settings for PHP_FCGI_MAX_REQUESTS. xcache seemed to exacerbate the issue, so I removed it. The server is a VPS but it has over a gig of ram dedicated to it. All suggestions are welcome at this juncture because I'm desperate.

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• links for 2010-05-04

  - by Bob Rhubart

  IdMapper: A Java Application for ID Mapping across Multiple Cross-Referencing Providers H/T to Geertjan for posting a link to this paper on a Netbeans-based project. (tags: java netbeans) Mastering Your Multicore System - Oracle Solaris Video How Sun Studio compilers and tools can simplify these challenges and enable you to fully unlock the potential in multicore architecture. Don Kretsch presents at Tech Days, Brazil, 2009. (tags: oracle sun sunstudio multicore video) Allison Dixon: COLLABORATE: OAUG Staff #c10 ORACLENERD guest blogger Allison Dixon offers a peek behind the curtain and a tip of the hat to the people behind Collaborate 10. (tags: oracle oaug ioug collaborate2010) @myfear: Java EE 5 or 6 - which to choose today Author, software architect, and Oracle ACE Director Markus Eisele shares his insight into the choice between Java EE versions. (tags: oracle otn java oracleace glassfish) @blueadept61: Architecture and Agility #entarch In yet another great, succinct post, Oracle ACE Director Mike Van Alst offers more quotable wisdom than I can share here. Read the whole thing. (tags: oracle otn entarch enterprisearchitecture agile) @blueadept61: Governance Causes SOA Projects to Fail? Oracle ACE Director Mike Van Alst's short but thought-provoking post raises issues of language and perception in dealing with the cultural hurdles to SOA Governance. (tags: oracle otn soa soagovernance communication) Anthony Shorten: List of available whitepapers as of 04 May 2010 Anthony Shorten shares a list of whitepapers available from My Oracle Support covering Oracle Utilities Application Framework based products. (tags: oracle otn whitepapers frameworks documentation) @processautomate: SOA Governance is Not a Documentation Exercise Leonardo Consulting SOA specialist Mervin Chiang proposes that simply considering and applying basic SOA governance -- service management -- can go a long way. (tags: otn oracle soa soagovernance) Article: Cloud Computing Capability Reference Model This Cloud Computing Capability Reference Model provides a functional view of the layers in a typical cloud stack to help Enterprise Architects identify the components necessary to implement Cloud solutions. (tags: oracle otn cloud entarch soa virtualization)

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• vsftpd: chroot_local_user causes GNU/TLS-error

  - by akrosikam

  Distro: Ubuntu 12.04.2 Server 32-bit Server client: vsftpd 2.3.5 (from default "main" repository) Problem: Since upgrading from Ubuntu 10.04 to Ubuntu 12.04 (nothing changed on client-side), vsftp has refused to make chroot-jails with the "chroot_local_user" directive on FTP(e/i)S-connections. Here's my vsftpd.conf: anonymous_enable=NO local_enable=YES write_enable=YES local_umask=022 dirmessage_enable=YES xferlog_enable=YES xferlog_std_format=YES ftpd_banner=How are you gentlemen. listen=YES pam_service_name=vsftpd userlist_enable=YES userlist_deny=NO tcp_wrappers=YES connect_from_port_20=YES ftp_data_port=20 listen_port=21 pasv_enable=YES pasv_promiscuous=NO pasv_min_port=4242 pasv_max_port=4252 pasv_addr_resolve=YES pasv_address=your.domain.com ssl_enable=YES allow_anon_ssl=NO force_local_logins_ssl=YES force_local_data_ssl=YES ssl_tlsv1=YES ssl_sslv2=NO ssl_sslv3=NO rsa_cert_file=/home/maw/ssl_ftp_test/vsftpd.pem rsa_private_key_file=/home/maw/ssl_ftp_test/vsftpd.pem debug_ssl=YES log_ftp_protocol=YES ssl_ciphers=HIGH chroot_local_user=NO How to reproduce: Have a working SSL/TLS-secured vsftpd-configuration (I suggest similar to the one above) ready. Try to connect with an FTP user client and upload some files. With my setup, the above listed config works well at this point. Edit /etc/vsftpd.conf and set chroot_local_user= to YES. Make sure that chroot_list_enable= and/or chroot_list_file= are not set. Comment them out if they are. Save and exit. Run sudo restart vsftpd (or sudo service vsftpd restart if you like) in a terminal. Try to connect with an FTP user client. You should see a message more or less like this: GnuTLS error -15: An unexpected TLS packet was received. This is an issue for me, as I do not want FTP-sessions to be able to list files outside the user's home folder. I have checked with several client-side apps, and I get the same results with every one of them. Filezilla is not so good regarding cipher methods nowadays, but as I am able to make an FTP(e)s-connection over TLS (as long as chroot'ing is disabled and ssl_ciphers is set to HIGH) I have a feeling ciphers are not the issue this time, and that I won't find the answer by tweaking configs on the client side. My vsftpd.log stays empty, even though debug_ssl and log_ftp_protocol are enabled, so no info there either.

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• Writing to the UI with MonoDroid using RunOnUIThread

  - by Wallym

  I've been pulling my hair out over the past day or so trying to update the UI in my test app.  I was having problem after problem.  I finally got down to my base problem.  I could not write out to my TextView.  WTF could be causing that?  I can write to my UI in other parts of my app.  This is pure craziness.  I thought long and hard and nothing was coming to me.  Wait, the light bulb went on.  I am in the wrong thread.  Great, how do I write in the correct thread?  MonoDroid supports the entire AsyncTask set of objects, but this seemed like overkill.  I was reading and came across RunOnUIThread().......Bing..........The lightbulb has been invented...BlueStar Airlines (oh wait, wrong context). Anyway, here is what I needed:this.RunOnUiThread(() => TextViewControl.Text = "Hello World"); Enjoy!!!!!!!  Remember kiddies, running on the main ui for off device operations is bad, not as bad as crossing the streams bad, but bad as in trying to drive on a flat tire bad. It won't kill you, but it does keep you from getting anywhere.

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• Should `keepalive_timeout` be removed from Nginx config?

  - by Bryson

  Which is the better configuration/optimization: to explicitly limit the keepalive_timeout or to allow Nginx to kill keepalive connections on its own? I have seen two conflicting recommendations regarding the keepalive_timeout directive for Nginx. They are as follows: # How long to allow each connection to stay idle; longer values are better # for each individual client, particularly for SSL, but means that worker # connections are tied up longer. (Default: 65) keepalive_timeout 20; and # You should remove keepalive_timeout from your formula. # Nginx closes keepalive connections when the # worker_connections limit is reached. The Nginx documentation for keepalive_timeout makes no mention of the automatic killing, and I have only seen this recommendation once, but it intrigues me. This server serves exclusively TLS-secured connections, and all non-encrypted connections are immediately rerouted to the https:// version of the same URL.

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• Word2007 - Preventing mid-item line breaks in a list in a table

  - by Dan

  It's not programming, but it's the paperwork you have to fill out ot get things to program. When you have a list with an item that's two lines long, and text above pushes it down such that a page break should fall between the two lines, Word pushes the item down so that both lines are on the following page - this is called Widow/Orphan Control and is an option on the Paragraph menu. When the list is inside of a table cell, however, this feature doesn't seem to work - which is what I'm looking to work around. Word doesn't push the item down automatically, so it breaks across two pages, as seen here: Solutions that have been tried: Playing with the options on the Paragraph tab: doesn't seem to do anything Changing the margins or text: this is a template and will need to always work Any ideas?

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